Prevalence and Prognostic Implications of Vitamin D Deficiency in Chronic Kidney Disease

Table 1

The difference in characteristics of 25-hydroxyvitamin D and 1,25-dihydroxyvitamin D.

	Affinity to vitamin D receptor	Serum total concentration	Half-life	Risk of hypercalcemia
25(OH)D	()	9.0–34.0 ng/mL; (500)	480 hrs	Low
1,25(OH)2D	(100–200)	20–60 pg/mL; ()	15 hrs	High

Relative value.